{
  "pools": {
    "A.gut": {
      "servers": [ "localhost:12345" ]
    }
  },
  "route": {
    "type": "FailoverRoute",
    "children": [
      {
        "type": "ErrorRoute",
        "enable_logging": false,
        "result": "mc_res_busy"
      },
      "PoolRoute|A.gut"
    ],
    "failover_limit": {
      "rate": 0.2,
      "burst": 9.8
    }
  }
}
